Major Cities along US 12 (SD) 2024-10-10 Roadnow US 12 (SD) Major Cities MAP Big Stone City MAP Milbank MAP Twin Brooks MAP Corona MAP Marvin MAP Wilmot MAP Summit MAP Waubay MAP Webster MAP Bristol MAP Andover MAP Groton MAP Hecla MAP Claremont MAP Bath MAP Columbia MAP Aberdeen MAP Mina MAP Ipswich MAP Westport MAP Roscoe MAP Bryant MAP Bowdle MAP Java MAP Selby MAP Mobridge MAP Glenham MAP Wakpala MAP McLaughlin MAP Bullhead MAP McIntosh MAP Watauga MAP Morristown MAP Orange MAP Lemmon